2019澳门网上平台赌钱gm777.top是一家集2019澳门网上平台赌钱,2019澳门网上平台赌钱,2019澳门网上平台赌钱于一体的综合性娱乐公司,为玩家提供全方位的游戏体验,诚邀您的体验。

分類導航
學術報告您的位置是:首頁 > 新聞動態 > 學術報告

Shape Transformations of Nemato-elastic Sheets and Textiles

日期:2018-12-28 18:03:17  字體:[] [] []

  演講嘉賓:

     9090.png

  Emeritus Prof Leonid M. Pismen

  Fellow of American Physical Society

  Editor of the European Physical Journal- Special Topics

  Department of Chemical Engineering

  Technion-Israel Institute of Technology


  時間:2019年1月4日 上午10:00-12:00

  地址:船建學院 木蘭樓A1006

  主持人:龔曉波 副教授


  演講摘要:

  Liquid crystal elastomers, made of cross-linked polymeric chains with embedded mesogenic structures, combine orientational properties of liquid crystals with shear strength of solids. Their flexibility and sensitivity to chemical and physical signals comes close to that of biological tissues. Reshaping of nemato-elastic sheets or shells opens ways of creating a variety of forms that can be manipulated by imprinting a pattern, boundary anchoring, positioning of defects, and doping. Reversible local phase transitions causing repeated reshaping can be used to construct soft crawling and swimming robots with the gait and speed dependent on flexural rigidity and substrate friction. Still more flexible shape transformations unimpeded by area or volume conservation are possible in textiles actuated by of Janus fibers that combine stimuli-responsive and passive materials. Under certain conditions, alternative equilibrium states, one absolutely stable and the others metastable coexist, and their relative energy may flip its sign as the system parameters, such as the extension upon actuation, change.


  演講嘉賓簡介:

  Prof Leonid M. Pismen is an Emeritus Professor of the Department of Chemical Engineering, Technion-Israel Institute of Technology in Israel, Haifa. He got his Doctor Degree of Science of Physical Chemistry in the Karpov Physico-Chemical Institute, Moscow in 1963, and became Senior Research Associate, Institute of Electrochemistry of the USSR Academy of Sciences, Moscow, Theoretical Department, 1967-1973, and Department of Fuel Cells, 1973-1975. He was assigned as full professor in 1975 in the Department of Chemical Engineering, Technion-Israel Institute of Technology, J. & B. Naiman Professor of Fluid Mechanics since 1993, and Emeritus Professor since 2005. His researches focused in theory of transport processes and dynamics o nonlinear non- equilibrium systems, especially in physico-chemical and biological applications. He is the current editor of the European Physical Journal- Special Topics. He served as distinguished leading scientist in many Israel and Russian national projects. He has written 2 books with Springer and Oxford University Press respectively, and published over 100 journal papers in high impact journals. 

分享到:0
[ 返回 ]

 

網站地圖|辦事指南|人才招聘|舊版入口|聯系我們

版權所有 ? 2014 上海交通大學船舶海洋與建筑工程學院 滬交ICP備05053

2019澳门网上平台赌钱